Tool for removing bolts, keys, etc.



Dec. 1924 1,519,067

" v "r. G. SMlTH .TOOL FOR REMOVING BOLTS, KEYS, ETC

Qriginal Filed Marc- 1 24 1925 Patented Dec. 9, 1924.

reams ensures, or corner. 6mm, ivroii'raiva. 3

new. ads rehearse-toms, knits, Era.

This inieiitibn relates to an 'inip'rove inent in that type of iin'pleiiien'ts o'r tools, designed for the *convenieiit i'vithdravalof bolts, keys, or the like, from fixtures, er f'or the lio'ldiiig of boltsor the like in applying-orreiiiovirig nuts, or for dutti'ng the heads from belts or the like.

The improved imple'iiieiit is of a pdrtable nature, involving gripping levers, for-med at their cooperative ends fo*" t'he particular work iii-"hand, tegetlier with iiieaii-swliereby the gripping Or other "c lesired aetionCfthe levei's m-ay be secured with that force necessary for the result desired.

he --in1plemeiit also includes what may be termed a pressure element, operating through the head of the implement an adapted to engage the surface adjacent the key or bolt to be withdrawn, the said pressure element being operative to force the implement as a whole, and thereby the gripped bolt or key, from the fixture to readily displace or withdraw such bolt or key.

The invention is illustrated in the accompanying drawings, in which:

Fig. 1 is a perspective view of the improved implement.

Fig. 2 is a plan, partly in section of the same Fig. 3 is a section on line 3-3 of Fig.

Fig. i is a perspective view of the operative end of a different form of gripping lever.

Fig. 5 is a similar view of another form of lever.

The improved implement as here shown, comprises a head 1, having a stem 2 exteriorly threaded at 3 and formed with a longitudinally extending interiorly threaded bore 4, which opens through the upper end of the head. The head is formed in offset relation to the stem 2 with oppositely projecting sections 5 formed with openings 6 to loosely receive the gripping levers These levers are pivotally supported in the sections 5 on pins 8 which are readily removable to permit the application of differe'iit types oflever's whendesired, and aswill later appear. The operative ends of the levers beyond the head curve-toward each other and have operativegrip'piii'g faces 10, those shown in "Fig. 1 being "a -Series of Sharp biting'e dges. In the opposite'direction fr'on'i the sections ;5, the levers are extnded as bars 9 with their relatively inner edges attheir remote ends cut away or 'inclined -at 11, these inclined edges being preferably s'lightly rounded. A follower 12 is 'slida b'le on the stem 2 and is formed in a laterally'qextended portion with recesses 13 having their inner walls 14C inclined as shown. These recesses 13 are arranged to receive theends of "the levers 7, with the edges 11 of such levers bearing on the inclined edges 14 'of the follower, and held in such Contact by a spring 15 connected to the respective levers iim'nediately adjacent the head 1. -An adjusting member 16-is threaded upon the stem 3, bearing at the iipp-er end against the'follower, so that the latter may be adjusted longitudinally of the stem d through the movement of the adjusting member. This member may be exteriorly formed as at 17 to receive a wrench, and may be additionally provided with radial projections 18 to permit the application of considerable power when desired.

A pressure element in the form of a threaded rod 19 cooperates with the threaded bore 4 of the stem 2. That end of the element 19 adjacent the operative ends of the levers is preferably formed to provide a center punch terminal 20, while the opposite end of the member has a head 21 for the application of a wrench.

In Fig. 4 a slightly different type of lever is shown in that the gripping face 22 has a series of line serrations 23 to grip an ele ment to be withdrawn, as a key or the like. In Fig. 5, the operative face of the lever is shown as a cutting edge 24, to permit cutting a bolt or other element when desired.

In use, the operative ends of the levers are arranged adjacent the head of the bolt, as at 25, and a follower 12 is forced upwardly by operation of the adjusting member, until the bolt head is tightly gripped, whereupon the bolt may be withdrawn by pulling upon the implement, or if such pull does not displace the bolt, the pressure elementmay be threaded longitudinally of the stem of the implement, and engage the surface of the fixture adjacent the bolt and force the bolt useful in withdrawing keys,

v with other sets of levers as desired.

What I claim is: I

1. In an implement of the classdescribed, a head, a stem carried thereby, gripping levers pivotally supported in the head, a follower movable on the stem and cooperating with the levers to move the gripping ends of said levers together, means movable on the stem to actuate the follower, and a pressure element operative from beyond the stem, said element projecting beyond the head and toward the gripping ends of the levers.

2. In an implement ofthe class described, a head having a stem formed with a longi: tudinal bore, gripping levers pivotally supported in said head, means for normally holding the gripping ends of said levers spaced apart, means operative on said stem to force the gripping ends of said levers toward each other, and a pressureelement if; v 1,519,067

operative in the bore of said stem and relative to the gripping ends of said levers.

3. In an implement of the class described, a head having an exteriorly threaded stem formed with an interiorly threaded bore, levers pivotally' supported. on the head, a follower movable longitudinally of the stem and operating to force the gripping 7 ends of said levers toward each other, an adjusting member threaded on the stem to operate the follower, and a rod cooperating with the threaded bore of the stem and having an operative end proj ecting beyond the head.

4. In an implement of the class described,

a head, lateral projections therefrom formed with openings, gripping levers arrangedin said openings, removable Vmeans'engaging the projections for pivotallv supporting the levers, a stem projecting from and forming part of said head, a follower movable on the stem and formed with guideways to receive the ends of the levers, the bottom of the guideways being inclined to move the levers as thefollower is moved, means-having threaded connection-with the stem to movethe follower, and a pressure'element operative in thebore of the stem and pro: jecting through the head toward the gripping ends of the levers.

. Intestimony whereof I afliX signa,--

ture. V v

THOMAS G. SMITH. [L. s..]' 

